CN210763275U - Polyolefin pellet blending and loading system - Google Patents
Polyolefin pellet blending and loading system Download PDFInfo
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- CN210763275U CN210763275U CN201921589964.9U CN201921589964U CN210763275U CN 210763275 U CN210763275 U CN 210763275U CN 201921589964 U CN201921589964 U CN 201921589964U CN 210763275 U CN210763275 U CN 210763275U
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Abstract
The utility model provides a polyolefin aggregate mixing loading system, the system is equipped with the several and mixes the feed bin, every mix the top of feed bin and have aggregate entry and mix feed bin air current entry, the bottom export is divided into loading line and mixing line by loading switching-over valve control, the loading line is connected to the loading head through online dust remover, can be with aggregate filling to highway tank wagon, railway tank wagon or special container, mixing line intercommunication to the air current transfer chain, install compressor, cooler and compressor outlet filter on the air current transfer chain in proper order, after the air current transfer chain communicates in proper order with each mixing line of mixing the feed bin, again with each mix feed bin air current entry of mixing the feed bin in proper order. The utility model discloses mix the polyolefin aggregate and load the function integration together, retrench equipment composition and pipeline, effectively reduced the dust that produces in the transportation process, reduced equipment investment, equipment area and operation energy consumption simultaneously.
Description
Technical Field
The utility model relates to a polyolefin aggregate mixing loading system.
Background
In a polyolefin device of a petrochemical enterprise, polyolefin granules produced after granulation are mixed in a mixing bin and kept stand for a certain time, then are conveyed to an elutriator at the top of a loading bin through an air flow conveying system, dust in the materials is removed, then the materials enter the loading bin to be buffered and stored by the aid of a neutral position, and finally enter a road tank car, a railway tank car or a special container through gravity. The dust and air removed from the elutriator enter a cyclone separator or a bag type dust collector, the dust is filtered from the air, and the tail gas is discharged to the atmosphere. In prior art scheme, mixing unit and loading unit are two process units, and mix the feed bin and apart from the loading feed bin far away usually, need one set of air conveying system to carry the material in mixing the feed bin to the loading feed bin, and it has obvious shortcoming: during the conveying process, the polyolefin granules are easy to generate wiredrawing materials and dust after being collided and abraded, and the equipment investment is large, the electric energy consumption is large, and the occupied area is large.
Disclosure of Invention
The utility model provides a polyolefin aggregate mixing loading system, the defect among the above-mentioned prior art is overcome to the purpose, reduces the dust that produces in the transportation process, reduces equipment investment, area and operation energy consumption simultaneously.
In order to achieve the above purpose, the utility model adopts the following scheme:
the top end of each mixing bin is provided with a granule inlet, a mixing material inlet and a mixing gas discharge port, a bottom outlet is divided into a loading line and a mixing line through a loading reversing valve, the loading line is connected to a loading head through an online dust remover, the loading head can fill granules into a road tank car, a railway tank car or a special container, the mixing line is communicated to an airflow conveying line, and the airflow conveying line is communicated with the mixing lines of the mixing bins in sequence and then is communicated with the mixing material inlets of the mixing bins in sequence.
The polyolefin pellet blending and loading system comprises: and a feeding reversing valve is arranged at the granule inlet at the top of each mixing bin.
The polyolefin pellet blending and loading system comprises: and a mixing material inlet at the top of each mixing bin is provided with a mixing and feeding reversing valve.
The polyolefin pellet blending and loading system comprises: a stop valve and a rotary valve are arranged between the bottom outlet of each mixing bin and the loading reversing valve.
The polyolefin pellet blending and loading system comprises: every online dust remover has feed inlet, discharge gate, air inlet and gas outlet, the feed inlet is connected with the loading line, the discharge gate is connected to the loading head, the air inlet is connected to compressed air inlet line, the gas outlet is connected to dust removal gas exhaust pipeline.
The polyolefin pellet blending and loading system comprises: and the tail end of the dust removal gas exhaust pipeline is provided with a filter or a cyclone separator, and gas in the dust removal gas exhaust pipeline is discharged to the atmosphere after passing through the filter or the cyclone separator.
The polyolefin pellet blending and loading system comprises: the bottom of filter is equipped with the drain, can get rid of the dust of gathering in the filter, drain department is equipped with the rotary valve.
The polyolefin pellet blending and loading system comprises: and the airflow conveying line is sequentially provided with a compressor, a cooler and a compressor outlet filter.
The polyolefin pellet blending and loading system comprises: and the mixing line discharge port is connected to a mixed gas discharge line.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the equipment investment is reduced;
2. the floor area of the equipment is reduced;
3. the operation energy consumption is reduced;
4. the dust generated in the conveying process is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a polyolefin pellet blending and loading system provided by the present invention;
fig. 2 is an enlarged schematic view of one of the blending silos of fig. 1.
Description of reference numerals: 1-mixing silo; 2-an upstream line; 3-a feed reversing valve; 4-blending feed reversing valve; 5-rotating the valve; 6-a shut-off valve; 7-loading a reversing valve; 8-a compressor; 9-a cooler; 10-compressor outlet filter; 11-a gas flow transfer line; 12-a compressed air intake line; 13-an online dust remover; 14-a loading head; 15-a dust removal gas exhaust line; 16-a filter; 17-a blend line; 18-loading line; 19-air mixture exhaust line.
Detailed Description
Some specific embodiments of the invention will be described in detail below, by way of example and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale.
Referring to fig. 1 and 2, the present invention provides a polyolefin pellet blending and loading system, which comprises a plurality of blending silos 1, wherein each of the blending silos 1 has three inlets at the top, namely a pellet inlet, a blending material inlet and an air outlet. The granule inlet is provided with a feeding reversing valve 3, and granules from an upstream pipeline 2 can enter any mixing silo 1 through the feeding reversing valve 3. And a blending material inlet is provided with a blending material inlet reversing valve 4 and is connected to an air flow conveying pipeline 11, and compressed air in the air flow conveying pipeline 11 can convey materials to enter the blending bin 1 through the blending material inlet reversing valve 4. The air-entrainment vent is connected to an air-entrainment vent line 19.
The bottom outlet of each mixing bin 1 is provided with a stop valve 6 and a rotary valve 5, wherein the stop valve 6 is used for controlling the opening or the cutting of an outlet pipeline, and the rotary valve 5 is used for controlling the flow of the outlet pipeline. Install loading switching-over valve 7 behind trip valve 6 and the rotary valve 5, the export pipeline of mixing silo 1 bottom is divided into loading line 18 and mixing line 17 by loading switching-over valve 7 control, loading line 18 is connected to loading head 14 behind online dust remover 13, and loading head 14 communicates with the loading mouth of highway tank wagon, railway tank wagon and special container again, can realize the filling of aggregate. The mixing line 17 is connected to the gas flow transmission line 11.
The air flow conveying pipeline 11 is sequentially provided with a compressor 8, a cooler 9 and a compressor outlet filter 10, the compressor 8 provides compressed air flow for the air flow conveying pipeline 11, the cooler 9 is installed behind the compressor and used for cooling the compressed air, and the compressor outlet filter 10 is installed behind the cooler and used for filtering the compressed air. The air flow conveying pipeline 11 is communicated with the mixing lines 17 of the mixing silos 1 in sequence and then communicated with the air flow inlets of the mixing silos 1 in sequence.
The online dust remover 13 is used for removing dust in the materials, and the online dust remover 13 is provided with a feeding hole, a discharging hole, an air inlet and an air outlet. The feed inlet is connected to loading line 18, and the discharge gate is connected dress locomotive 14, and the material accessible loading line 18 gets into in the online dust remover and removes dust, leads to the loading locomotive 14 from the discharge gate after removing dust. The air inlet is connected to a compressed air inlet pipeline 12, the air outlet is connected to a dedusting air exhaust pipeline 15, compressed air needs to be introduced when the online deduster 13 works, the compressed air inlet pipeline 12 is respectively communicated with the online dedusters 13 to supply air for the online dedusters 13, the air outlet of each online deduster 13 is converged into the dedusting air exhaust pipeline 15 through a pipeline, a filter 16 is installed at the tail end of the dedusting air exhaust pipeline 15, exhaust air is filtered and then exhausted to the atmosphere, and pollution to the environment is avoided.
Preferably, the bottom of the filter 16 at the tail end of the dust removal gas exhaust pipeline 15 is provided with a sewage discharge port, and the sewage discharge port is provided with a rotary valve 5 which can discharge and treat dust accumulated in the filter.
In use, polyolefin pellets from the upstream line 2 are fed through the feed diverter valve 3 into the blending silo 1 for blending with pellets produced from other batches. After enough polyolefin granules are filled in the mixing bin 1, the stop valve 6 and the rotary valve 5 are opened, the loading reversing valve 7 is adjusted to enable the mixing line 17 to be communicated with the mixing bin 1, and the compressed air is fed from the bottom of the mixing bin 1 through the air flow conveying pipeline 11 to enable the polyolefin granules to be fully mixed. The compressed air carries away the VOC in the blending bin 1, enters the blending gas exhaust line 19 from the blending gas discharge port, and is then discharged to the atmosphere. Meanwhile, the granules in the blending bin 1 enter an air flow conveying pipeline 11 through a bottom outlet, and are conveyed back to a blending material inlet at the top of the blending bin 1 through the air flow conveying pipeline 11 to enter the blending bin 1 for blending.
After the polyolefin pellets are blended, the shut-off valve 6 and rotary valve 5 are closed and the pellets are allowed to stand for a period of time. After the polyolefin granules are subjected to standing treatment, the stop valve 6 and the rotary valve 5 are opened again, the loading reversing valve 7 is adjusted to enable the loading line 18 to be communicated, the polyolefin granules can be discharged by utilizing gravity, and the granules enter the loading head 14 after being dedusted by the online deduster 13 to complete loading operation.
In the second embodiment of the present invention, a cyclone is installed at the end of the dust-removing exhaust line 15 to separate exhaust gas from dust instead of the filter 16.
The utility model has the advantages that:
the utility model discloses mix the polyolefin aggregate and load the function integration together, retrench equipment composition and pipeline, effectively reduced the dust that produces in the transportation process, reduced equipment investment, equipment area and operation energy consumption simultaneously.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A polyolefin pellet blending loading system which is characterized in that: the mixing device is provided with a plurality of mixing bins, the top end of each mixing bin is provided with a granular material inlet, a mixing material inlet and a mixing gas discharge port, the bottom outlet is divided into a loading line and a mixing line by a loading reversing valve, the loading line is connected to a loading head through an online dust remover, the loading head can fill granular materials into a highway tank car, a railway tank car or a special container, the mixing line is communicated to an airflow conveying line, and the airflow conveying line is communicated with the mixing line of each mixing bin in sequence and then communicated with the mixing material inlet of each mixing bin in sequence.
2. The polyolefin pellet blending truck system of claim 1, wherein: and a feeding reversing valve is arranged at the granule inlet at the top of each mixing bin.
3. The polyolefin pellet blending truck system of claim 1, wherein: and a mixing material inlet at the top of each mixing bin is provided with a mixing and feeding reversing valve.
4. The polyolefin pellet blending truck system of claim 1, wherein: a stop valve and a rotary valve are arranged between the bottom outlet of each mixing bin and the loading reversing valve.
5. The polyolefin pellet blending truck system of claim 1, wherein: every online dust remover has feed inlet, discharge gate, air inlet and gas outlet, the feed inlet is connected with the loading line, the discharge gate is connected to the loading head, the air inlet is connected to compressed air inlet line, the gas outlet is connected to dust removal gas exhaust pipeline.
6. The polyolefin pellet blending truck system of claim 5, wherein: and the tail end of the dust removal gas exhaust pipeline is provided with a filter or a cyclone separator, and gas in the dust removal gas exhaust pipeline is discharged to the atmosphere after passing through the filter or the cyclone separator.
7. The polyolefin pellet blending truck system of claim 6, wherein: the bottom of filter is equipped with the drain, can get rid of the dust of gathering in the filter, drain department is equipped with the rotary valve.
8. The polyolefin pellet blending truck system of claim 1, wherein: and the airflow conveying line is sequentially provided with a compressor, a cooler and a compressor outlet filter.
9. The polyolefin pellet blending truck system of claim 1, wherein: and the mixing line discharge port is connected to a mixed gas discharge line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921589964.9U CN210763275U (en) | 2019-09-23 | 2019-09-23 | Polyolefin pellet blending and loading system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921589964.9U CN210763275U (en) | 2019-09-23 | 2019-09-23 | Polyolefin pellet blending and loading system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210763275U true CN210763275U (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921589964.9U Active CN210763275U (en) | 2019-09-23 | 2019-09-23 | Polyolefin pellet blending and loading system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210763275U (en) |
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2019
- 2019-09-23 CN CN201921589964.9U patent/CN210763275U/en active Active
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